Help Me

[tiger2007]

Ai Co Cai Code Viet Bang C De Hien Thi Chay Chu Tren Lcd Vd Chu "hello" Lam On Cho Em Cai

[pass]

Ai Co Cai Code Viet Bang C De Hien Thi Chay Chu Tren Lcd Vd Chu "hello" Lam On Cho Em Cai

Đây nè bác
PS: Cái này không phải em viết, tác giả đưa lên là bác Multi System, tham khảo thêm ở http://www.dientuvietnam.net/forums/...t=12367&page=3

[kennybk04]

Ai Co Cai Code Viet Bang C De Hien Thi Chay Chu Tren Lcd Vd Chu "hello" Lam On Cho Em Cai

#include <at89c51RB2.h>
sbit rs = P1^0;
sbit rw = P1^1;
sbit en = P1^2;
sbit str = P1^3;
sbit eoc = P1^4;
sbit a = P1^5;
sbit bf = P2^7;
sbit sck = P1^6;
sbit sda = P1^7;

void write_lcd(unsigned int dat,bit option);
void wait_lcd(void);

void main (void)
{
write_lcd(0x38,lenh);
write_lcd(0x0c,lenh);
write_lcd(0x53,dulieu);
write_lcd(0x50,dulieu);
write_lcd(0x4f,dulieu);
write_lcd(0x32,dulieu);
write_lcd(0x3a,dulieu);
write_lcd(0x00,dulieu);

write_lcd(0xc0,lenh);
write_lcd(0x48,dulieu);
write_lcd(0x52,dulieu);
write_lcd(0x3a,dulieu);
write_lcd(0x00,dulieu);

[kennybk04]

Ai Co Cai Code Viet Bang C De Hien Thi Chay Chu Tren Lcd Vd Chu "hello" Lam On Cho Em Cai

code ne` ban !!!

#include <at89c51RB2.h>
sbit rs = P1^0;
sbit rw = P1^1;
sbit en = P1^2;
sbit str = P1^3;
sbit eoc = P1^4;
sbit a = P1^5;
sbit bf = P2^7;
sbit sck = P1^6;
sbit sda = P1^7;

bit lenh=0;
bit dulieu=1;

void write_lcd(unsigned int dat,bit option);
void wait_lcd(void);


void main (void)
{
write_lcd(0x38,lenh);
write_lcd(0x0c,lenh);
write_lcd('H',dulieu);
write_lcd('E',dulieu);
write_lcd('L',dulieu);
write_lcd('L',dulieu);
write_lcd('O',dulieu);
while(1);
}
void wait_lcd()
{
rs=0;
rw=1;
P2=0xff;
while ((bf==1))
{
en=0;
en=1;
}
}

void write_lcd(unsigned int dat,bit option)
{
if(option==0)
{
rs=0;
rw=0;
P2=dat;
en=1;
en=0;
wait_lcd();
}
if(option==1)
{
rs=1;
rw=0;
P2=dat;
en=1;
en=0;
wait_lcd();
}
}